Canon S100SP User Manual page 85

Examining the Nozzle Check Pattern
The nozzle check pattern should appear as follows when ink is discharged properly.
Examine the nozzle check pattern output by the printer.
Color BJ Cartridge
24
24
24
64
Black BJ Cartridge
128
If the pattern is broken, missing or any of the colours is not printed, clean the print head.
24
24
24
24
Routine Maintenance
Printing the Nozzle Check Pattern 85